I'm skilled webdeveloper and webmaster with strong knowledge of Magento Commerce administration, development, optimization, and theming, and i will gladly work for you on this project. I have past experience with similar projects, so i don't expect any troubles, however i'll need more information about your needs to bid accordingly. So please feel free to ask me any question or to send me more information via PMB. Thank you. PS: I think best way how to proceed will be to create custom Magento extension to do this job (can be both overriding (no overwriting) Magento core classes without interrupting Magento functions, or creating new components, it depends on your needs.)